DE1543116A1 - Verfahren zur Herstellung niedrigviskoser wasserloeslicher Celluloseaether - Google Patents
Verfahren zur Herstellung niedrigviskoser wasserloeslicher CelluloseaetherInfo
- Publication number
- DE1543116A1 DE1543116A1 DE19651543116 DE1543116A DE1543116A1 DE 1543116 A1 DE1543116 A1 DE 1543116A1 DE 19651543116 DE19651543116 DE 19651543116 DE 1543116 A DE1543116 A DE 1543116A DE 1543116 A1 DE1543116 A1 DE 1543116A1
- Authority
- DE
- Germany
- Prior art keywords
- hydrogen peroxide
- viscosity
- low
- cellulose ether
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229920003086 cellulose ether Polymers 0.000 title claims description 30
- 238000000034 method Methods 0.000 title claims description 17
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 56
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000007864 aqueous solution Substances 0.000 claims description 4
- 239000011541 reaction mixture Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 238000010525 oxidative degradation reaction Methods 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 claims 1
- 150000008041 alkali metal carbonates Chemical class 0.000 claims 1
- 230000015556 catabolic process Effects 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 8
- 238000006731 degradation reaction Methods 0.000 description 7
- 229920002678 cellulose Polymers 0.000 description 6
- 239000001913 cellulose Substances 0.000 description 6
- 229920000609 methyl cellulose Polymers 0.000 description 6
- 239000001923 methylcellulose Substances 0.000 description 6
- 235000010981 methylcellulose Nutrition 0.000 description 6
- 239000007800 oxidant agent Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 description 5
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 4
- 239000001768 carboxy methyl cellulose Substances 0.000 description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000012670 alkaline solution Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000002845 discoloration Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- GAWIXWVDTYZWAW-UHFFFAOYSA-N C[CH]O Chemical group C[CH]O GAWIXWVDTYZWAW-UHFFFAOYSA-N 0.000 description 1
- 229920000896 Ethulose Polymers 0.000 description 1
- 239000001859 Ethyl hydroxyethyl cellulose Substances 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 description 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 description 1
- OUUQCZGPVNCOIJ-UHFFFAOYSA-M Superoxide Chemical compound [O-][O] OUUQCZGPVNCOIJ-UHFFFAOYSA-M 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019326 ethyl hydroxyethyl cellulose Nutrition 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 methylhydroxypropyl Chemical group 0.000 description 1
- GRVDJDISBSALJP-UHFFFAOYSA-N methyloxidanyl Chemical group [O]C GRVDJDISBSALJP-UHFFFAOYSA-N 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000007086 side reaction Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B11/00—Preparation of cellulose ethers
- C08B11/20—Post-etherification treatments of chemical or physical type, e.g. mixed etherification in two steps, including purification
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Cosmetics (AREA)
- Detergent Compositions (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0056264 | 1965-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1543116A1 true DE1543116A1 (de) | 1969-07-31 |
Family
ID=7227780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19651543116 Pending DE1543116A1 (de) | 1965-05-29 | 1965-05-29 | Verfahren zur Herstellung niedrigviskoser wasserloeslicher Celluloseaether |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE681669A (enrdf_load_stackoverflow) |
| CH (1) | CH461455A (enrdf_load_stackoverflow) |
| DE (1) | DE1543116A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1139637A (enrdf_load_stackoverflow) |
| LU (1) | LU51202A1 (enrdf_load_stackoverflow) |
| NL (1) | NL6606972A (enrdf_load_stackoverflow) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2726780A1 (de) * | 1976-06-14 | 1977-12-15 | Dow Chemical Co | Verfahren zur erniedrigung der viskositaet von cellulosederivaten |
| US5708162A (en) * | 1994-04-05 | 1998-01-13 | Hoechst Aktiengesellschaft | Process for the preparation of low molecular weight polysaccharide ethers |
| WO2000032636A1 (de) * | 1998-11-27 | 2000-06-08 | Wolff Walsrode Aktiengesellschaft | Verfahren zur herstellung niedrigviskoser wasserlöslicher celluloseether |
| EP2505615A1 (en) | 2011-04-01 | 2012-10-03 | Omya Development AG | Self-binding pigment hybrid |
| EP2505614A1 (en) | 2011-04-01 | 2012-10-03 | Omya Development AG | Process for preparing self-binding pigment particles |
| EP2662418A1 (en) | 2012-05-11 | 2013-11-13 | Omya International AG | Sustainable adsorbable polymers |
| EP2662419A1 (en) | 2012-05-11 | 2013-11-13 | Omya International AG | Charge controlled PHCH |
| EP2662416A1 (en) | 2012-05-11 | 2013-11-13 | Omya International AG | Treatment of calcium carbonate containing materials for increased filler load in paper |
| EP2868716A1 (en) | 2013-11-04 | 2015-05-06 | Omya International AG | Process for producing a high solids pigment suspension comprising carboxymethylcellulose-based dispersant |
| EP3018176A1 (en) | 2014-11-07 | 2016-05-11 | Omya International AG | A process for the preparation of flocculated filler particles |
| EP3018175A1 (en) | 2014-11-07 | 2016-05-11 | Omya International AG | A process for the preparation of flocculated filler particles |
| EP3118161A1 (en) | 2015-07-17 | 2017-01-18 | Omya International AG | High solids pcc with depolymerized carboxylated cellulose |
| US10723886B2 (en) | 2011-08-31 | 2020-07-28 | Omya International Ag | Self-binding pigment hybrid |
| US11905339B2 (en) | 2017-12-22 | 2024-02-20 | Se Tylose Gmbh & Co. Kg | Oxidative degradation of cellulose ethers |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4048433A (en) * | 1976-02-02 | 1977-09-13 | The Procter & Gamble Company | Cellulose ethers having a low molecular weight and a high degree of methyl substitution |
| DE2917104A1 (de) | 1979-04-27 | 1980-11-06 | Hoechst Ag | Verfahren zur viskositaetserniedrigung von celluloseethern durch ozon und seine verwendung |
| US4547571A (en) * | 1983-10-06 | 1985-10-15 | Kohjin Co., Ltd. | Process for preparing carboxymethyl ethyl cellulose suitable for enteric coating |
| ATE167488T1 (de) * | 1990-07-02 | 1998-07-15 | Aqualon Co | Niedrigviskose-polysaccharidzusammensetzung mit hohem festkörpergehalt |
| AU6830400A (en) * | 1999-07-28 | 2001-02-13 | Rhodia Acetow Gmbh | Method for carrying out the targeted depolymerization of polysaccharides |
| WO2002100902A1 (en) | 2001-06-11 | 2002-12-19 | Rhodia, Inc | Galactomannan compositions and methods for making and using same |
| CN119798469B (zh) * | 2025-03-17 | 2025-06-27 | 山东赫达集团股份有限公司 | 一种制备高白度低色度低粘度纤维素醚的方法 |
-
1965
- 1965-05-29 DE DE19651543116 patent/DE1543116A1/de active Pending
-
1966
- 1966-05-20 NL NL6606972A patent/NL6606972A/xx unknown
- 1966-05-26 BE BE681669D patent/BE681669A/xx unknown
- 1966-05-26 CH CH766766A patent/CH461455A/de unknown
- 1966-05-27 LU LU51202D patent/LU51202A1/xx unknown
- 1966-05-27 GB GB2395866A patent/GB1139637A/en not_active Expired
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2726780A1 (de) * | 1976-06-14 | 1977-12-15 | Dow Chemical Co | Verfahren zur erniedrigung der viskositaet von cellulosederivaten |
| US5708162A (en) * | 1994-04-05 | 1998-01-13 | Hoechst Aktiengesellschaft | Process for the preparation of low molecular weight polysaccharide ethers |
| WO2000032636A1 (de) * | 1998-11-27 | 2000-06-08 | Wolff Walsrode Aktiengesellschaft | Verfahren zur herstellung niedrigviskoser wasserlöslicher celluloseether |
| US6939961B1 (en) * | 1998-11-27 | 2005-09-06 | Wolf Walsrode Ag | Method for the production of low-viscous water soluble cellulose ethers |
| EP2982719A1 (en) | 2011-04-01 | 2016-02-10 | Omya International AG | Process for preparing self-binding pigment particles |
| WO2012130706A1 (en) | 2011-04-01 | 2012-10-04 | Omya Development Ag | Self-binding pigment hybrid |
| WO2012130702A1 (en) | 2011-04-01 | 2012-10-04 | Omya Development Ag | Process for preparing self-binding pigment particles |
| EP2505614A1 (en) | 2011-04-01 | 2012-10-03 | Omya Development AG | Process for preparing self-binding pigment particles |
| US9365723B2 (en) | 2011-04-01 | 2016-06-14 | Omya International Ag | Process for preparing self-binding pigment particles |
| EP2505615A1 (en) | 2011-04-01 | 2012-10-03 | Omya Development AG | Self-binding pigment hybrid |
| US10723886B2 (en) | 2011-08-31 | 2020-07-28 | Omya International Ag | Self-binding pigment hybrid |
| EP2662418A1 (en) | 2012-05-11 | 2013-11-13 | Omya International AG | Sustainable adsorbable polymers |
| WO2013167473A1 (en) | 2012-05-11 | 2013-11-14 | Omya International Ag | Treatment of calcium carbonate containing materials for increased filler load in paper |
| WO2013167527A1 (en) | 2012-05-11 | 2013-11-14 | Omya International Ag | Sustainable adsorbable polymers |
| EP2662416A1 (en) | 2012-05-11 | 2013-11-13 | Omya International AG | Treatment of calcium carbonate containing materials for increased filler load in paper |
| EP3095822A1 (en) | 2012-05-11 | 2016-11-23 | Omya International AG | Charge controlled phch |
| US10640653B2 (en) | 2012-05-11 | 2020-05-05 | Omya International Ag | Sustainable adsorbable polymers |
| US10519307B2 (en) | 2012-05-11 | 2019-12-31 | Omya International Ag | Treatment of calcium carbonate containing materials for increased filler load in paper |
| US9896580B2 (en) | 2012-05-11 | 2018-02-20 | Omya International Ag | Treatment of calcium carbonate containing materials for increased filler load in paper |
| EP2662419A1 (en) | 2012-05-11 | 2013-11-13 | Omya International AG | Charge controlled PHCH |
| WO2015062978A1 (en) | 2013-11-04 | 2015-05-07 | Omya International Ag | Process for producing a high solids pigment suspension comprising carboxymethylcellulose-based dispersant |
| EP2868716A1 (en) | 2013-11-04 | 2015-05-06 | Omya International AG | Process for producing a high solids pigment suspension comprising carboxymethylcellulose-based dispersant |
| WO2016071349A1 (en) | 2014-11-07 | 2016-05-12 | Omya International Ag | A process for the preparation of flocculated filler particles |
| EP3018175A1 (en) | 2014-11-07 | 2016-05-11 | Omya International AG | A process for the preparation of flocculated filler particles |
| EP3018176A1 (en) | 2014-11-07 | 2016-05-11 | Omya International AG | A process for the preparation of flocculated filler particles |
| US11155965B2 (en) | 2014-11-07 | 2021-10-26 | Omya International Ag | Process for the preparation of flocculated filler particles |
| US11326307B2 (en) | 2014-11-07 | 2022-05-10 | Omya International Ag | Process for the preparation of flocculated filler particles |
| EP3118161A1 (en) | 2015-07-17 | 2017-01-18 | Omya International AG | High solids pcc with depolymerized carboxylated cellulose |
| WO2017013012A1 (en) | 2015-07-17 | 2017-01-26 | Omya International Ag | High solids pcc with depolymerized carboxylated cellulose |
| US11905339B2 (en) | 2017-12-22 | 2024-02-20 | Se Tylose Gmbh & Co. Kg | Oxidative degradation of cellulose ethers |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6606972A (enrdf_load_stackoverflow) | 1966-11-30 |
| GB1139637A (en) | 1969-01-08 |
| BE681669A (enrdf_load_stackoverflow) | 1966-11-28 |
| LU51202A1 (enrdf_load_stackoverflow) | 1968-02-21 |
| CH461455A (de) | 1968-08-31 |
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